Part Number: ISO7810
When I want to build a IGBT-Driver like "Flexible High Current Gate Drive With Reinforced Digital Isolator" with an ISO 7810 or ISO 7842 there are some questions. The DC-Voltage is perhaps 750V and I switch the IGBT with 40 kHz then I have a square wave output voltage at the transformer when I want to build a DC/DC converter.
I think I stress the Isolation barrier of the ISO 7810 / 7842 with 40 kHz. The Maximum isolation working voltage refer to Figure 1 and Figure 2 in the Data Sheet of the ISO7810.
Figure 1 and Figure 2 refer only to 60 Hz.
1. How is the Reinforced Isolation Capacitor Lifetime Projection for Devices in DWW Package when I switch with 40 kHz at a DC-Bus with 750 V ?
2. When the IOS7810/7842 isolation barrier fail - can it fail close (the isolation barrier) ?
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